Question 33 (5 points) (3, 9). Determine the values of a and b so that the function f(x) = x3 + ax + b has a minimum at Paragraph V BIUAEEV + v . . . RX Add a File Record Audio Record Video Question 34 (5 points) Prove that 2 cos x cos 2x + 1 T = sec x. Which double angle identity of cos 2x did you use and why? + Paragraph v BIUVA EV V